Theresa Apocalypse Hentai: Próifíl Carachtar & Bailiúchán

A Honkai Impact 3rd character. Theresa Apocalypse is a clone (dubbed as A-310) made by Otto Apocalypse using the genes of a Houkai beast named "Vishnu" and Kallen Kaslana's DNA in an attempt to bring Kallen back. As a test body, A-310 has excellent Houkai resistance and strong powers. She was born on March 28, 1972. Being a part of the 260 A-E series, A-310 did not know her identity and Otto told her that he would tell her anything she needed if she completed the tests. (Source: Danbooru Wiki)