Crescendo introduces Ryo Sasaki, a member of the literary circle of the local Japanese school. The guy had a difficult childhood, because he always felt like a stranger both in his own family and among his classmates. Already as a teenager, the protagonist learned that he was adopted as a baby, and his real parents died in a car accident. For most of his life, the hero alienated his peers and often became involved in fights with other guys.

Everything changes dramatically when Ryo meets nurse Kaori, who treated his arm broken in a fight. She was the first one to whom the guy opened his soul for the first time. A few years later, Kyoko comes to class – an open and cheerful girl who becomes his close friend. Soon the class is joined by the beautiful Yuka, who makes a living by selling her own body to men. Ryo is the only one who comes to the aid of the unfortunate woman when she has a miscarriage.

Crescendo provides an opportunity to develop relationships with each of the fair sex. It is important not to try to establish connections with everyone at once, or even more so to switch to romance, because such an act can give rise to a conflict within the team. When interacting with beauties, the gamer must carefully plan his strategy and take into account the character traits of each, so that the answers do not play a cruel joke and, conversely, do not alienate the NPC from the character. Absolutely the entire narrative is presented in dialogue. Almost all endings are happy and reaching them will not be difficult.