Naruto: Chronicles of a Fire Ninja - Chapter 9: Entrance test

At 18, Alex Kain is whisked away to Eryndor, a game-like realm where he gains 'Skill Synthesis', a talent to fuse skills into godlike powers. Battling monsters and conquering dungeons, he builds a harem of strong women drawn to his might and charm. With the power to return to Earth bearing incredible resources, Alex faces a growing threat that endangers both worlds in this epic of adventure, romance, and ambition.

Liu Xuefeng was a normal boy who had it all planned: get to the same university as his best friend Tianshi and win her love, spending the rest of his life with her.

The older young Lisko woke up and found that he had become an American. He took over his father’s ranch and began to live in the United States.

- Description from novelbuddy

GunGun, as a national treasure(panda), was stolen by thieves and skinned. Once he woke up, he had a healthy body and lots of bamboo leaves. But monsters with glowing eyes surrounded him, most importantly they were floating, have greenish blue faces, fangs, and have no little legs?!

(⊙o⊙) Oh, the two-legged monster is here again, huh, is this bowl of food for him? These tender leaves are delicious, they should be hidden in the deepest part of the den.

There was an extra panda cub in the Interstellar Admiral’s embrace which he brought everywhere he goes. The place where a gun was once placed turned into a place for holding a basket full of leaves.

One day, GunGun became a beautiful boy.

Pouting face GunGun: Big monster I’m hungry. Huh? Where’s my fur!

The admiral’s face flushed crimson red being overwhelmed by its cuteness: “!!!!!” My darling!

******Small Theater~******

GunGun who was holding a small bamboo shoot and shivering: It’s so scary, monsters with no heads or tails are floating!

The admiral who fell from the sky: GunGun, don’t be afraid.

GunGun who was holding a little apple and shivering: It’s so scary, a glowing green skull is smiling at me!

The admiral who fell from the sky: GunGun, don’t be afraid.

GunGun who was clinging to the Admiral’s thigh with wet eyes: Ah, the corpse moved! He said that I’m cute and wanted to touch me.

The admiral who became fierce: This absolutely won’t do!

- Description from Novelupdates