Mobile Suit Arena

A very interesting Gundam fanfic. Judging from the current situation, the story is probably about a story about a time traveler protagonist with a system that can summon Gundam world-view mechas and pilots (it currently has these two functions) in an original mecha world without Gundams. The world setting seems quite large, and it also involves multiple worlds. Let's see what the future author writes and support it with five stars first! (There are really few Tomato Gundam fans)

I found a book by accident. It's quite good and wonderful.

Great, but the protagonist doesn't have a dedicated machine, which is a bit disappointing

Finally found a Gundam