Chapter 87

"Monster Nature" (怪人性, Kaijinsei) is the 87th chapter of the One-Punch Man manga series.

Summary
A new group agrees with the monster outbreak. They attempt to capture a citizen for disagreeing with their ideology, but bump into Garou. Unfortunately for them, Garou knocks them out with a flick before heading to a nearby restaurant. Garou eats everything on the menu. Saitama is having lunch at the same restaurant, but is not able to pay because he lost his wallet. Coincidentally, Fubuki arrives and begins talking about the Hero Hunter and once again trying to get him into her hero faction. This was because Saitama has been promoted to Rank 7 of Class B. He gives Fubuki fries and starts smiling creepily. Across the table, garou is also not able to pay. He dashes out and everyone screams dine and dasher. Then, Saitama goes out to "catch" the din and dasher. And this he sees as a the perfect chance to lose the bill, as he pushes the bill onto Fubuki, for eating the fries. Later, Garou scares some boys who were bullying Tareo. He then talks to his nephew about getting strong. After this event, Saitama comes along. He mocks garou, talking about the dine-and-dash event. And starts walking back home. To this Garou gets angry, thinking that heroes have starrte to mack him. Then, he tries to carry out his task by bring back saitama's head. To this, Saitama diligently punches Garou, knocking him back. Some time later, Garou asks Tareo who the person who punched him was. but Saitama is not in Tareo's catalogue. Right after, two "myth" monsters, as Tareo would call them, appear. And proceed to kill both Garou and Tareo.

Chapter Notes

 * Back in the 80's there was a Japanese idol named Sakai Noriko who was known among other things for changing phrases in cutesy nonsensical ways. One of these was itadaki-mammoth instead of itadakimasu. Saying it today would be sort of like a dad joke. The real joke here is Saitama independently making the same sort of word play with gochisosama, which is what Japanese people say at the end of a meal.
 * Murata mentioned on that the dine and dash place Togas (トガス) is based on Cafe Restaurant Gusto (Cafe レストラン ガスト), a Japanese fast food chain that Murata enjoys eating at. Murata just rearranged Gusto (ガスト) into Togas (トガス).