I Can Fuse Without Limit

Zhu Hao is thoroughly unremarkable, a young man with nothing going for him and a crippling fear of socializing.

One day, he suddenly gains a fusion System. It can even send him to another world and grant him a cheat-level ability like stopping time. What else is there to say? As a shameless pervert, of course he's going to find girls to fuse with him: pure and innocent girls, holy female mages, female warriors, even an empress...

Oh, pure-hearted young man, the story is just beginning~

One more thing: As Zhu Hao spends time with the System, he discovers that it isn't merely an aid. It seems to have a mind of its own...!

The System is Zhongli.

(Fusion, gender transformation, boys' love turning into girls' love, transmigrate to another world, multiple heroines)

(Finally, the writing style changes starting from Chapter 66.)