Let's sparring Brother

* attention *
- She brother is being dressed as a girl.
- With vomiting expression
- R-18G

Belly-only sparring manga by the original character's brother and sister!
Full color manga.
A total of 10 pieces of manga and illustration.
With guest illustration.
Anyway, Sparring is belly and belly and belly!
Please enjoy the sister (Rina) who trains her brother's (Ryosuke) belly. :)