“There is something that Nishikido-kun often tells me. For example, when Nishikido-kun is standing next to me and I accidentally drop my wallet and he picks it up for me. At that time off the top of my head I say, “Ah, sorry!” If I do, Nishikido-kun will frown at me and say, “It’s not ‘sorry’, it’s ‘thank you’!”