A radical brother-sister life with a cute little sister, Chigusa-chan, and you, starting with "Good morning, brother!"Chigusa-chan, who is popular with the boys in her class, consults her brother about her confession.She really wants to tell you how much she loves her brother, so she messes with you in every way possible.It seems that Chigusa-chan, who is well-behaved at her age, also knows the secret of how her penis grows.I wanted you to be more and more happy, so I showed off my crack, and when I pushed it hard, it went straight in!I'm getting more and more comfortable... just like that, a lot of white stuff came out!