Lusty Hot Spring 3
The third installment, made milder with the highly adhesive folds !
This is the third installment in the Onsen series, made by Toys Heart . The material used is Soft Material , which combines softness and elasticity. The interior is made of longitudinal rib type , which is common to the series, and in this work, it has a structure that is densely packed with three-dimensional folds.![]() |
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| Popularity | 8 | |
|---|---|---|
| Feeling good | 7 | |
| maintenance | 8 | |
| durability | 9 | |
| value for money | 7 | |
| retailers | otonaJP | ||
|---|---|---|---|
| size | Total length: approx. 5.91 in (15 cm) 0.90 lb (407 g) | ||
| Manufacturer | Toys Heart | price | Check current price at retailer |
| Year of release | 2025 | Material name | Soft Material |
| Tightness | Somewhat tough | stimulation | usually |
| odor | I don't mind | Oiliness | I don't mind |
| softness | usually | Inside out | ○ |
| kinds | non-through Masturbators folds + nubs Longitudinal folds | ||
It feels like it's been a really long time since I last used Toys Heart 's male masturbator . This latest release is the third installment of Toys Heart 's popular "Hot Spring Lust" series, and it's attracting attention as it's the first new release in five years.
Even though it's been five years, it doesn't really register with me personally. That's because, while it's true that this is the third installment in the hot spring series and it's been a while since the last one, the lust series has had installments in the past featuring public places, secluded spots, and scenic views, so when they say it's been five years, my reaction is more like, "Oh, really?" and nothing really comes to mind.
The materials were also changed successively, with the first generation being Baby Skin , the second being Hitohada Material , and the third being Soft Material . The internal structure was also shared under the broad category of vertical folds , but when you actually compare them, the first and second generations have similar structures except for the edges of folds , while the third generation is made in a completely different way.
As is often the case with popular series, it's inevitable that they gradually lose their original form, but will they still retain the essence of the "hot spring arousal" theme? Let's try it out right away.
Cross-sectional view and internal structure of Lusty Hot Spring 3
Detailed images of Lusty Hot Spring 3
Lust Series
Lust in a Hidden Land
Price: Around 3,300 yen and upSize: 6.18 in (15.7 cm)
Weight: 0.83 lb (377 g)
Toys Heart
Hot spring arousal
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Size: 6.30 in (16 cm)
Weight: 0.85 lb (385 g)
Toys Heart
Hot Spring Lust 2
Price: Around 3,200 yen and upSize: 6.30 in (16 cm)
Weight: 0.95 lb (429 g)
Toys Heart
Public lust
Price: Around 3,200 yen and upSize: 5.91 in (15 cm)
Weight: 0.87 lb (395 g)
Toys Heart
View and desire
Price: Around 3,700 yen and upSize: 5.39 in (13.7 cm)
Weight: 0.85 lb (384 g)
Toys Heart
Cross-sectional view and internal structure of Lusty Hot Spring 3
The inner diameter is about 0.79 in (2 cm) at its widest point, but because the BOTE folds is densely packed, insertion feels somewhat tight.
[Regular 真空吸附特化型 ]
Although classified as vertical folds , a closer look reveals that it is actually composed of densely packed, fine granules forming a solid folds . Therefore, when vacuumed and pressed together, the granular texture can be felt.
The inner wall of folds has fine, wrinkle-like textures. The densely packed, granular texture of folds is the main source of stimulation.
I turned it halfway inside out. The material is very elastic and easy to turn inside out.
Turning them inside out was easy. Except for folds , they were so tiny they seemed to disappear as they stretched out.
I tore it open. It's folds with rounded corners and no sharp edges at all.
A quarter of the incision was made. There is a dense cluster of bloating folds ).
Detailed images of Lusty Hot Spring 3
This is a picture of the packaging of the item Daimao that I ordered online.
As expected for Toys Heart , it was securely packaged in blister case . There was almost no oil residue on the plastic packaging. The weight is 0.90 lb (407 g).
It's a bit small at 5.91 in (15 cm) in length, but it has a very easy-to-handle shape and elasticity.
The opening is a standard 0.47 in (1.2 cm) and a simple round hole. There are vertical lines, but they don't continue to the round hole, so it didn't tear.
It's a bit tight and difficult to insert unless you have a firm erection. Inside, there's a slight feeling of resistance, making it quite tight.
The vacuum works quite well, resulting in a nice, distinct grainy texture.
How soft is Lusty Hot Spring 3 ?

List of HOT POWERS material's hardness degree
When trying to convey the softness of a material, simply saying "soft" or "hard" is difficult because everyone has different standards. As an experimental attempt, I would like to use the power of materials categorized by degree, such as HOT POWERS , which are neatly separated from hardness , to convey the feeling.
I own all hardness grades except for Oni, so I'll try to explain that this male masturbator is similar to this hardness . Even with this method, the stickiness and properties differ depending on the material, and the feel when kneading changes slightly depending on the size of the material, so I can't say for sure if I can convey it accurately. I hope you will consider this as just one reference.
I compared it to the material of Standard 0 (hardness level) , and Onsen Yokujo 3 has more elasticity and feels slightly firmer.
Next, I compared it with +1. The sample material is thin and not very easy to compare, so I folded it to increase the thickness, and it seemed to have roughly the same hardness degree. So, hardness degree is...hardness +1I think that's quite reasonable.
*Material's hardness rating (personal opinion)
Size of Lusty Hot Spring 3
In comparison to dildo , I stopped using dildo that I was previously using and tried the new 3 sizes.
The previous L size was impossibly large, so I figured it wouldn't be helpful to many people. Therefore, I've prepared three more realistic sizes.
Michinoku Dildo comes in various sizes, and even the M size can vary considerably. Please note that the sizes displayed here are not the actual product sizes, but rather our own arbitrary size translations. (For example, what we use for the S size is actually the old Michinoku M size.)
Compare the size of each dildo model.
With the S size, there's a little space at the back. It's a small vacuum zone, but it still provides good suction.
With the medium size, there's only a small amount of space at the back. It's usable, but some people might find it insufficient.
The L size will reach all the way to the back. I think it will be too short for those who prefer the L size and won't be able to fully enjoy it.
Administrator Review
The material used is Soft Material , and although it's labeled as soft and airy , it's not incredibly soft; it's a firm, elastic material with a rubbery feel. It has the texture you'd expect from Toys Heart material, and there's absolutely no oil bleed or odor to be noticed.
male masturbator is a bit on the shorter side at 5.91 in (15 cm), but it has a standard weight of 0.90 lb (407 g). It's almost cylindrical, but the opening and bottom have a rounded, gentle design, and the body is smooth and unprocessed.
The opening is a 0.47 in (1.2 cm) round hole with vertical grooves at the top and bottom. However, the grooves are not connected to the hole, so it is not designed to tear easily.
The internal structure shares the same vertical folds section, but the shape and arrangement of folds are all different. Therefore, it's better to think of it as a completely different male masturbator rather than an evolved version of the Onsen series.
I immediately poured lotion inside and tried inserting it. The opening is of normal size, but the material is quite elastic, so it's difficult to insert when semi-erect; you need to be fully erect before inserting it.
When you push it in slowly, you feel a slight resistance as if it's pushing back. The material doesn't feel like hard, knobby sensation , but rather like soft and airy , and as you move in, you are sandwiched between mild vertical folds on all sides.
A single vertical protrusion, folds , begins near the middle and extends downwards. This vertical folds is the main source of stimulation, and the protrusion is positioned just below corona of the glans , providing a gentle, granular sensation.
Thanks to its short body and flexible material, male masturbator 真空吸附特化型 is extremely agile and very easy to maneuver. Come to think of it, lately I've been using only soft male masturbator or bulky male masturbator so this easy-to-handle male masturbator feels refreshingly new.
folds is not the sharp-edged type, but rather the rounded-edge type. You won't feel any roughness at all with folds folds the main source of stimulation is the grainy texture.
When you apply vacuum, the air inside is expelled with a "poof," and it adheres tightly to the penis. When you do 真空吸附特化型 , the texture changes to an even finer popping sensation feel.
Well, how should I put it? There aren't any particularly noticeable flaws, but at the same time, there's nothing particularly groundbreaking about it. To put it bluntly, if it weren't for the fact that this is the third installment in the Onsen Yokujo series after a five-year hiatus, it would probably get lost in the crowd, giving the impression of a commonplace, familiar kind of thrill.
The durability is excellent, allowing you to easily turn it inside out like a sock, so it might be interesting to use it for a long time, as is typical of Toys Heart , and wait for it to "awaken."































