My Wife Has Shown Up at My Door. What Should I Do?

[Male leads + sweet and fluffy + slice of life + 12-year age gap + mutual pining] Content warning: A sweet, everyday romance. Mo Yuheng has a secret tucked away in his heart: At some point, he began to harbor an improper desire for his teacher's own grandson. Is the boy his precious moonlight, or an unspeakable fantasy? He wants him. He wants to claim him by force, but he can't do that. A teacher is a father for life, and besides, he's truly looked after the boy like his own nephew since childhood. All he can do is hide his dark thoughts. Who could have guessed that his best friend would drop the boy off at his door and ask him to look after him? He tries to avoid his feelings, yet can't help spoiling and indulging the boy, wishing only for him to be happy. He keeps his distance, while the boy presses closer at every turn. His once-steady resolve begins to waver, and all he wants is to devour the boy who keeps leaping about in his heart. But the boy is too innocent to understand his feelings. It isn't until the little lamb has finally been devoured, body and soul, by the big bad wolf that he sees the wolf's darker side. The little lamb doesn't know that from now on, he'll never escape the big bad wolf's world. He witnessed the boy's birth and watched him grow. In the end, he will spend the rest of his life with him. Love comes from nowhere, yet once it begins, it runs deep. Yun Xinglan has an ambitious goal: kiss him, hug him, pin him down, claim him, and make him his alone. Mo Yuheng's indulgence gives him the courage and confidence to keep trying. If Mo Yuheng runs, he'll just try harder. He has a maturity and determination beyond his years. His world is black and white, and he has one unwavering goal: to love Mo Yuheng and become his partner.