I Became Everyone's Favorite by Throwing Money Around

[The Management Bureau universe, third crossover series] Bound to a Harem Protagonist System just before he died, Hasegawa Ikki survived, but not entirely. The newly bound System told him solemnly: [Host, if your Harem Protagonist score drops below 60, you'll die.] [However, this System cannot provide rainbow-colored hair or tears that turn into pearls. Due to current calls for environmental protection on Earth, it also cannot manufacture a bed hundreds of meters long. And the System can only enter names up to five characters long. No dot separators allowed.] [...Then what can you do?] Hasegawa Ikki asked, speaking from the depths of his soul. [Money,] the System said shyly. [Lots of money.] [Please use money without hesitation to smash through every identity and achievement, and become a Harem Protagonist!] -- B-Rank Achievement: Damage Reimbursement √ Achievement Description: [I don't think "reimbursement" means buying this whole block so Gojo Satoru and Geto Suguru can smash it up as much as they like?] A-Rank Achievement: Legendary Entrepreneur √ Achievement Description: [The Host is a scumbag for tricking the Workaholic Emperor into taking n jobs, then making the Zenin clan lose money betting at their own racetrack to boost revenue.] A+-Rank Achievement: Diamond Polisher √ Achievement Description: [Could it be, and I mean could it be, that the "diamonds" in the achievement title refer to two living people, not the South African diamond mine you just bought?] S-Rank Achievement: Mastermind √ Achievement Description: [You were supposed to fund the Star Religious Group, the distillery, and the Port Mafia, but nobody said to combine them, build them into global powerhouses, and unify the underworld???] SS-Rank Achievement: Special Grade Sorcerer √ Achievement Description: [Money can't solve every problem, but problems are generally caused by not having enough money. That doesn't mean you can throw five million at ordinary people who are feeling negative emotions, just to use money to make all those negative emotions disappear and exorcise the cursed spirits.] SSS-Rank Achievement: Buy the Distillery √ Achievement Description: [Wait, this achievement is impossible! It was just put at the end to make the three S's look good!] [...You really bought it?] Tips: 1. There are other achievements. These aren't all of them. 2. The Harem Protagonist is one in the literal sense. After all, who doesn't like money... 3. Returning to my comfort zone to recover from writer's block, and to treat my Dazai Osamu and Gojo Satoru PTSD while I'm at it. 4. A goofy everyday comedy. Ikki is a stand-up comedian in training, and his wealthy sugar daddy System plays the straight man. No angst, no main plot, and no riddles. I swear I won't write any. 5. A crossover with lots of random anime and games that make me nostalgic. Probably... there'll be a stockpile of chapters (crawls around on keyboard). 6. Although this is the third installment in the Management Bureau series, only the System is part of the Bureau. Ikki is an unaffiliated outsider (x). [Synopsis version 5.5 has been screenshotted] Theme: Money can't solve every problem. We still have to build a better future with our own hands