UuultraC – the plot events are transferred to 1970 in Soshigawa. The measured life of Japan is interrupted by dangerous Kaiju monsters, who not only destroy everything in their path, but also infect people with an unusual virus. The hero of the story is Shotaro, he fights for the life of humanity and for justice, but accidentally becomes infected with a disease. Now, all his good traits were left behind, and the dark ones began to appear more and more, making him a real antagonist who does not spare anyone.

The visual novel UuultraC allows you to take part in events related to confrontation with internal and external monsters. Shotaro will be able to establish relationships with the people around him and try to regain his sanity or become completely evil, ignoring the feelings of others. He also has a boyfriend, Kozuki, who is worried about his partner’s mental health and is trying to pull him out of the depths of darkness. Communication with the characters takes place through dialogues with the choice of the preferred answer.

There are several endings that depend on the chosen path of the protagonist. You can also interact with the outside world. During key turns of the story, animated cut scenes with text accompaniment appear. In addition, an erotic component was added. Bed scenes appear when the relationship with Kozuki is quite close.