The Liquor Company Boss Is Six and a Half

Two male leads, Gin x Wu Lianye, platonic pairing. Don't ask why: a six-year-old can't be dating. The whole family dotes on him. Welcome to the Black Organization family. Here's the introduction:

“I'm the Organization's BOSS, Karasuma Renya. While waiting for Gin to report, I was framed and made to take a suspicious capsule. When I woke up, my body had shrunk! If the person who tried to kill me discovers I'm still alive, they'll come after me again. So, at Gin's suggestion, I concealed my identity and took the name Wu Lianye. My body has shrunk, and my mind is a blank. The clueless BOSS knows nothing at all: there is never just one undercover agent!”

After copying Conan's self-introduction, Wu Lianye scratched his head. Something about it seemed off. Oh, well. It'll do. Gin is coming to pick him up from school.