My hc is that in a modern au or rather in a normal life, Altan would have loved cooking and baking.
This isn't based on anything. I just think it would be neat.
He's really good at it. He's constantly working on perfecting recipes via the scientific process and shit. He has two notebooks (he's old school like that). The first notebook is for the ongoing experiment recipes and he charts his process and the ingredients in black ink, and what worked and what didn't in red ink. The second notebook is for the perfected recipes.
He makes the food, has one late of it for tasting and evaluation and gives the rest to Rin (who lives with him) and Kitay (the freeloader who never leaves). Those two finish everything off like starved hounds. Because even Altan's unsuccessful recipes taste fucking delicious.
Chagan finally looks like a healthy man after he started dating Altan bc that man won't fucking stop bringing food over (only the successful recipes in the beginning of their relationship). Chagan kinda mourns his Twink death.
Altan wanted to pursue culinary school but didn't for some reason. Everyone tells him to open a restaurant but he's such a perfectionist he can't do it bc he thinks he has to learn and perfect every dish ever created on gods green earth before he can start a restaurant.
One of his gripes about Nezha is that he thinks that little spoiled shit stain cannot properly feed his precious little cousin good nutritious food.
Altan is basically just Sensi from dungeon meshi but with a giant chip on his shoulder about perfection and work ethic, and homosexual tendencies.
