Reborn in the Apocalypse, My Wife and I Got Our Happy Ending

(Post-apocalyptic rebirth + revenge + System + superpowers + base-building + feel-good power fantasy, dual male leads, older top, top-focused, both each other's first and only, mutual devotion, with a side couple!) A seemingly calm and dependable, but actually shy and easy to fluster, pure-hearted top + a gentle, innocent-looking bottom who's secretly a natural-born schemer with incredible combat skills and a knack for being direct + their sunny, cheerful, straightforward, hilarious best friend (crossed out) third wheel. Gu Qi discovers that he has been reborn three weeks before the apocalypse, and has awakened a super storage System. This time, he decides to personally take revenge on his scumbag parents and ungrateful younger siblings, stockpile supplies with his wife and best friend, fight monsters and level up, build a base, and dominate the apocalypse. From then on, he'll rise to the top! Best friend: Actually, I have a System too... Gu Qi: ? Wasn't I the chosen one? Wife: ...I think I have one too? Gu Qi: ??? Are Systems being sold wholesale? Gu Qi: How about this: the three of us team up, and we'll be invincible! And so, the trio's hilarious journey to survive the apocalypse begins!