Kokuhaku Game

Spend four days in the game and clear it by confessing to your beloved, Shiori. However, during that time, you must resist the temptations of the girls who use the "Confession Game" as their opportunity. Preserve the protagonist's chastity and make it to the final day. ※What is the Confession Game? A game in which whoever confesses to the protagonist and receives an "OK" is declared the winner. [Translated from DLsite]