Three Hundred Years as a Villainous Male Side Character, Now I Retire in a Small World

[A wicked beauty on the bottom x A top who's a puppy at first and a wolfish dog later] [Super sweet, 1v1, both pure, younger top] In his previous life, Yu Fengyin owed the Space-Time Bureau thirty billion. In this life, he worked for the Bureau for three hundred years, playing countless villainous male supporting characters. At last, he paid off his debt. Impressed by his work, the Bureau hoped he would keep working. But he resolutely chose to retire and enjoy his life. Three hundred years of work was more than enough. Making him keep working would just be rude. His work partner picked out a small world for him to spend his retirement in. Since it was a retirement world, he didn't need to follow the plot. He only had to make sure the protagonist stayed on track until the end. Who could have guessed that the protagonist would be a poor student who scored in the single digits on exams? Looking at the pitiful scores on the test paper, Yu Fengyin closed his eyes. With grades like that, the protagonist could easily go off track. He couldn't let that happen. The protagonist was also a red-haired little lion who bristled whenever he was teased. But after Yu Fengyin teased him again and again, the little lion he had treated as a stress-relief toy ended up pinning him down.