What is a bosom friend

Zhiyin Manke was a famous Chinese comic magazine founded in 1993. It mainly used comics to cover many popular comics such as One Piece, Naruto, Death, Conan, and so on. Zhiyin Manke's exquisite style and compact plot were deeply loved by Chinese comic readers. It had also won many domestic and international comics awards, such as the "Golden Calf Award for Chinese Animation" and the "Chinese Comic Award". Zhiyin Manke not only had many readers in China, but also had a certain influence overseas.