Type-Moon: From the Start, I Sign In to Claim the Two Heavenly Dragons' Legacy

(Multiple heroines, a passionate, kind, and righteous protagonist, a negative-emotions System, striving to make things happen, quick transmigration.) After recovering from a serious illness, Xia Tian hit the jackpot while saving someone, and when he woke up again, he found himself in a new world. “Congratulations, you've received a beginner's reward. Head to the park restroom and start by making someone lose it.” Xia Tian: ?? You made Aoi Tohsaka lose it. You received the beginner's gift pack: the Red Dragon Emperor's Gauntlet and the White Dragon Emperor's Light Wings. You made Rin Tohsaka lose it. Negative emotions +222. You made Sakura Tohsaka lose it. Negative emotions +235. Get the Holy Grail and make its participants lose it, and you'll obtain the God-Slaying Gear, the Radiant Thunder Prison, the Twilight Holy Spear... “Eri, I'm Ultraman!” Xia Tian appeared, holding an Orb Ring. “Misaka Mikoto, I can unleash lightning too, and I can even drop meteors.” Xia Tian appeared, his Rinnegan open. “Herta, my pocket can hold anything. See for yourself.” Xia Tian appeared with a four-dimensional pocket. The villains: “You're crazy! You're insane! What are you trying to do?” Xia Tian: “Let's work together to create a better future.”