[m]
Sorry for bad english.
I read this manga for more than 10 yrs ago.
Details from just 1 volume that i read.

- Quite weird story.
- no sex in that vol but almost have.
- Female protagonist is problably curious about men’s body or muscle and There is a scene that female prota. fall over male prota. In that scene female see male’s upper body closely and say in her mind with excitement “muscle!” and male also see her breast closely and gets excited.
- There is a scene that male prota. see female prota. sleeping and almost naked with nipples almost uncovered and just underwear. He almost have sex with her but suddenly thinking about some issues about birthmark or tattoo or something else at her butt or breast and checking it . I am not sure if he finds it or not. And then he stop having sex because that issue for some reasons.
- in that volume there Is a scene where male prota. peeping when female prota. changing her clothes with many other women.

Kono S o, Mi yo! perhaps?

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Banned:
Pringer-X
woke12345

[m]
I have found it!. The title is Shocking boy.