Comprehensive Comic: My Plug-In Is the Favorability of the Heroine of the Whole Series

Yagami Yuu, a good-for-nothing high school student who was criticized by his girlfriend for being poor and stepped on by the rich second generation, awakened to the fusion system of all realms at the moment when his engagement was broken off in public. The system can travel through countless anime worlds, integrating the strongest templates from the worlds such as Bleach, Naruto, Moon, Date A Live, and Spell Return. It can also increase the favorability of the heroines in each world, unlock bonding skills, fusion skills, and even allow them to travel with him across the world. In the Shinigami world, he holds a Zanpakutō and fights against Aizen; in the Naruto world, he awakens the Sharingan and crushes the ninja world; in the Moon world, he participates in the Holy Grail War and confronts Jin Shining; in the Date A Live and Spell Return worlds, he seals elves and kills cursed spirits, step by step towards the pinnacle of all worlds. This is a harem comic that goes from being a loser whose engagement was broken off to having a full-length heroine and killing all over the world! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.