Ultraman: Black and White Geed, My Silly and Sweet Little Brother

Pure brotherhood, no system, ⚠️not a wish-fulfillment story!

Situ Zhi x Asakura Riku (brothers, neither is a romantic partner)

The story is about how the male protagonist initially adores and spoils his brother after finding him, whom he hasn't seen for a thousand years. However, as time goes on, the brothers start to grow tired of each other.

The story focuses on everyday romance in the early stages, and later on the younger brother and Ultraman gang fight together. I recommend starting from volume two. (｀•ω•´)

The first thing Situ Zhi did upon arriving in this universe was to find his naive and innocent younger brother.

When the two brothers first met:

Xiao Zhi: I will protect you from now on and I will never let anyone bully you.

Xiao Zhi looked at Xiao Lu, whom he hadn't seen for thousands of years, with great interest, and Xiao Lu also cared a lot about this older brother he hadn't seen for so many years.

Seeing that Xiao Lu's monster-fighting was chaotic and disorganized, he devised a training plan for Xiao Lu, compiled teaching materials for him, and even made a set of armor for Xiao Lu, taking care of everything.

My brother compiled information on aliens and monsters. There are two volumes on aliens and three volumes on monsters, as well as ancient alien script. Each volume is as thick as a brick, and the words make my eyes dizzy.

However, a hundred years later:

Xiao Zhi roared: Chao! Cang! Lu! Get over here! Show me what you've made!

Xiao Lu felt wronged: You said you would protect me!

Ash: I'll protect you! But that doesn't mean I won't hit you! Get over here!

Xiao Lu immediately activated the dimensional device and ran away. Love really does change! ( ๑ŏ ﹏ ŏ๑ )

Zero! Help! My brother's going to beat me up!

Zero: ? ? ?

The male protagonist has a cheat code, a very powerful one, but he's not invincible.