Real Eroge Situation! DT (リアルエロゲシチュエーション！DT)

Losing one’s virginity is an event that happens only once in a lifetime.
Therefore, it may be human nature to want to have all the virginity of the person you love.

I, Shun Okunaga, have a constitution in which I frequently get flagged by the opposite sex, and furthermore, the flags break naturally.
My sister, who works for an erotic game company, calls it my “flag-crushing constitution.
Because of this constitution, I have never been in love with the opposite sex until now.

This is how my love life begins, as if I were the protagonist of an erotic game!