What Should I Do When My Archrival's System Gets Bound to Me by Mistake? [Apocalypse]

Su Leming has always considered Xie Xingyan his sworn rival. Ever since Xie transferred to No. 2 High School, he has stolen not only Su's title as the school's most handsome boy, but also his crown as the top student in their grade. And now, Xie Xingyan even has a Dragon-Apocalypse leveling System, except it was mistakenly bound to Su. Faced with the novice System, who has been crying for ten minutes straight, Su Leming gets a splitting headache. [All right, all right, I'll give you back. Tell me how.] [Waaah, I'm really sorry. But you only need to make physical contact with Lord Xie Xingyan.] It then lists the contact requirements and transfer speeds in detail. If they touch hands, it can transfer 0.000001% per second. If they kiss, it can transfer 0.00001% per second. [But if there's negative-distance contact, just 10 cm will let me activate instant-transfer mode. The transfer speed will reach an astonishing 0.01%, and I'll be able to move completely into Lord Xie Xingyan in just 166 minutes! (^o^)/~] Su Leming: [ ... You should just self-destruct.] 10 cm? He's worried Xie Xingyan doesn't even have that much. (ˉ▽￣~) Tch~~. [No, I can't! This world will enter apocalypse mode in six months. If Lord Xie Xingyan doesn't have me, he won't be able to complete his mission to save the world, and Earth will be destroyed. Everyone will die!] Su Leming: [...] To save the world (?), Su Leming has no choice but to grit his teeth and get close to Xie Xingyan, touching him by accident and even sneaking a kiss while he's asleep. Until, in a classroom during a power outage, Xie Xingyan pins Su Leming against a desk and asks in a husky voice, "Why did you sneak a kiss?" Su Leming is on the verge of tears. "Would you believe me if I said it was to save the world?" Later, Su Leming learns that Xie Xingyan's is twice as long as 10 cm. * Six months later, the apocalypse arrives right on schedule. Su Leming awakens a water-type ability, and Xie Xingyan successfully awakens the most powerful thunder-type ability. Before Su Leming can even start saving the world, Xie Xingyan pins him against a wall and makes him create some water, then shocks him with it. Su Leming: !!!! Aaaah, you pervert! Is he really the savior, and not a villain bent on destroying the world? Xie Xingyan (secretly thrilled): So water really does conduct electricity. Optimistic little ray of sunshine, kind and beautiful uke x gloomy, morbidly possessive seme The seme is gloomy every day in the beginning and hopes the Earth will explode. 1v1, HE~ Theme: Saving each other and moving forward together