The Immortal in the Zither

A short story, about ten chapters long. Zhang Fan’s subordinate suddenly sent him an ancient zither. ??? What the hell is this thing? Do I look like someone who can play the zither? Gu Mo smiled ingratiatingly. "A belated birthday present." Then he promptly ran off. When Zhang Fan came out after taking a shower, a handsome man in red, dressed in ancient-style clothing, had suddenly appeared in the living room. ??? A snail boy? Hongyu: "I’m a zither immortal, big brother~" Couple: Fan-ge x Hongyu the Zither The top has a bad temper, but never loses it with the bottom. The bottom is irresistibly alluring and heartbreakingly beautiful, and he’s a zither immortal. Theme: