This is additional content for NTR by my Younger Childhood Friend!? His size Ruined Me for My Boyfriend!!, but does not include the base game.

Release Date:
Jul 23, 2026
Publisher:
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Downloadable Soundtrack

This is additional content for NTR by my Younger Childhood Friend!? His size Ruined Me for My Boyfriend!!, but does not include the base game.

This game is not yet available on Steam

Planned Release Date: Jul 23, 2026

This game plans to unlock in approximately 3 weeks

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Mature Content Description

The developers describe the content like this:

This soundtrack contains explicit, audio-only mature content, including heavy breathing, sexual sounds, and voice acting depicting sexual acts.

Consistent with the base game's storyline, the audio explores themes of infidelity (NTR), blackmail, and fictional depictions of coercion and non-consensual sexual scenarios. This is an audio-only product and contains no visual explicit content or violence.

All characters voiced in this soundtrack are strictly over the age of 18.

About This Content

A Dangerous Relationship with the Girl Next Door… Who Already Has a Boyfriend?

“Wait… do you want to… do it? With me… something naughty?”

Kasumi, the older girl next door, has been your childhood friend for as long as you can remember.

Mature, composed—and already taken—she’s always felt just out of reach…

and completely impossible to resist.

One day, you accidentally get caught peeking while she’s changing.

Seeing your flustered, inexperienced reaction around women,

she can’t help but start teasing you.

What begins as playful “mischief” slowly escalates—

from holding hands, to embraces… to whispers against your ear.

Before you realize it, the line between teasing and something more

is only a single step away from being crossed…



Track Listing

1
01_Prologue_Changed clothes… and got peeped on…
(01_プロローグ_着替えを覗かれて…)
1:46
2
02_A little mischief… ear licking
(02_ちょっといたずらして耳舐め)
2:38
3
03_I knew I shouldn’t since I have a boyfriend… but it was way bigger than I imagined, and I got curious… ended up giving a blowjob
(03_でも、彼氏がいるからダメって思ったら…想像以上にアレが大きくて興味津々フェラ)
4:36
4
04_Seeing something that impressive made me feel strange… deep kissing… and being caressed…
(04_立派なアレを見たら変な気分になってきて…ディープキス。愛撫もされて…)
6:34
5
05_I know I have a boyfriend, but I couldn’t hold back my feelings… we ended up having sex
(05_彼氏がいるからダメなのに…気持ちを抑えられなくてエッチ)
5:14
6
06_Epilogue_I’m sorry, boyfriend… I wasn’t satisfied. This is kind of your responsibility.
(06_エピローグ_ごめんね彼氏君。満足できなくて。これは責任問題だよ。)
1:32
7
all_NTR by my Younger Childhood Friend!? His size Ruined Me for My Boyfriend!!
(all_年下幼馴染のモノが立派すぎてNTR!もう彼氏には戻れない!!)
22:23


Credits

System Requirements

* Starting February 15, 2024, the Steam Client will no longer support 32-bit games or macOS 10.14 or lower.
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