For Fumiya Tomozaki, one of the best gamers in Japan, the "game of life" is the worst game in existence. Despite the fact that Tomozaki is the number one player in the video game Attack Families, he is a self-proclaimed bottom-tier character when it comes to real life. As a second-year high school student, he suffers from an absolute lack of self-esteem, leading him to completely give up on trying to improve himself as a person. Instead, he blames the real world for being completely unbalanced, with no logical way to level up your character.

Aoi Hinami is an immensely popular girl in Tomozaki's class with fantastic grades. She fits the role of a perfect heroine and is on the opposite end of the social spectrum from Tomozaki. However, after a chance encounter with Hinami, Tomozaki realizes that she is not a perfect character after all!

So begins a story of drama and romance revolving around Tomozaki's attempts at conquering the game of life under Hinami's guidance.

Jaku-Chara Tomozaki-kun won the 10th Shogakukan Light Novel Grand Prize. The light novel ranked four times in the top 10 in the Kono Light Novel ga Sugoi! for the Light Novels category from 2017 to 2019 and in 2021.

The series has been published in English as Bottom-Tier Character Tomozaki by Yen Press since July 30, 2019.