I Will Devote All My Energy to Spoiling My Childhood Friend, a Beautiful Kuudere Girl Who Can’t Be Honest

I’m going to put all my energy into spoiling my childhood friend. For three years throughout junior high school, Tsuzuri Sasaki put all of his energy into his studies, athletics, and appearance. Everything he did was to win the affection of his childhood friend, Kotoba Shirayuki, and to lead a lovey-dovey high school life with her. Tsuzuri, who has become a perfect superhuman, attacks his childhood friend without mercy! And what is waiting for Tsuzuri? A beautiful thieving cat who creeps up on him, and bastards who are trying to make a move on Kotoba! However, the high-spec protagonist, Tsuzuri, steadily solves the problems that come his way. All for the sake of his beloved childhood friend! However, his childhood friend, Kotoba Shirayuki, has been in love with him since they were in junior high. Will Kotoba be able to withstand the oncoming spoiling attack of Tsuzuri?