How Can a True Liquor Become the Science Club's Favorite?

(Revisions began on April 22, 2023. There won't be any major changes, just some work on transitions between scenes and typos. I'll try to finish in the next few days.) After transmigrating, Xiang Yue changed from a girl into a little boy, gained the surname Sakura, and became a suspected distillery experiment under 360-degree surveillance. The System every transmigrator needs gave him these mission requirements: 1. Successfully raise the designated character's favorability to 99. (The target is currently described as blond.) 2. Complete 90% of the main storyline. 3. After the main storyline ends, rank among the top five most popular characters with the Science Forum's users. Complete all the missions to return to reality, be reborn, and receive a legal reward of 100 million RMB. Yusheng Xiangyue was speechless. The target is only described as blond? What am I supposed to do with that? There are tons of blond characters in the anime world. And who could have imagined that he, a successor of the Flower Kingdom, would one day take up the distillery's mantle, be given a liquor name, and become a bona fide black liquor? He even got along harmoniously with the protagonist group and developed a friendship so touching it could bring people to tears. But can someone tell him how to complete the missions? Help, it's urgent! A few notes: 1. The protagonist is a real liquor: delicate, pretty, kind, and ruthless. 2. Female-to-male. (He's been male ever since transmigrating and won't change back.) 3. Pairing: Gin. (I read a great novel, and now all I can think about is Gin.) 4. The author just likes watching Conan, but isn't smart enough to be a walking encyclopedia of Conan. Please forgive any mistakes. Feel free to offer suggestions, but the author may not make changes. Thanks! 5. The protagonist's intelligence is the author's intelligence. If the protagonist isn't smart enough, please don't scold him. Scold me instead. 6. The crossover worlds aren't set in stone, but they won't affect the main storyline. Theme: Create a successful future together with friends