Bog Standard Isekai - Chapter 22Book 4.

A normal high school boy with nothing much happening in his life except for...life. Every new day was the same as the one before but he doesn't really care much about it. He thought of himself as a normal high school-going boy with no clear future. Lazy, sarcastic, but kind of intelligent, he was living a normal life.Though fate had different plans for him as he met a girl who he did and did not know. The school princess was the first thing he saw when he woke up in his bed caressing his head. To any other boy in his situation, it would be pure bliss but he was worried.Why?Since she was in his house which he had locked before going to sleep. Little did he know that the girl was more than what she showed and was about to turn his entire life upside down. How will he tackle this situation? No one knows that.

I have experienced all the eight sufferings of this world.

I do not ask for nirvana, but for you.

Wild and hard-to-tame demon (gong) x cold, ascetic and childish immortal (shou)

- Description from Novelupdates

Ye Chen transmigrated to a parallel world. In this world, everyone who was 18 and above would enter a chat group named Monster Chat. From there, they would summon their pets.Each person only had 10 chances of summoning pets and one chance to form a bond with a pet. Right at this moment, a voice rang in Ye Chen’s head:[Ding! Successfully activated the Unlimited Summoning System.][Congratulations for summoning pet: Dark Princess (level 8)][Congratulations for summoning pet: Alchemist (level 7)][Congratulations for summoning pet: Female Asura (level 7)][Congratulations for summoning pet: Goddess (level 9)][Congratulations for summoning pet: Demon Fox (level 10)][Congratulations for summoning pet: Nyuwa (level 10)]……This was an era where humans, monsters and pets coexisted. This was also Ye Chen’s era.

He was the merciless Soldier King on the battlefield who sent shivers down the enemies' spines; he was the soldier scoundrel in his squad who could make anyone both cry and laugh; he was the Big Brother everyone in the urban underworld aspired to be; he was the male god in the hearts of young girls and beautiful women; he returned with a mission...Uniting the underworld, establishing an economic empire, he vowed to become the supreme overlord of this world...To prevent the world from destruction, to protect world peace, to implement love and truth's evil, the lovely and charming antagonist, he is Xiang Yu, and he speaks for himself...