His struggle is hilarious :D

English transcript:
Ken: Monday’s are for the thighs, Tuesday’s are for the upper arm and shoulders. If you train the same spot every day, your super recovery time will be all used up, you know?
Rihito: Super recovery? That sounds like something from a game, cool!
Ranmaru: Yeah. I was actually thinking about the balance too.
Ken: Of course! Muscles that are just for show won’t win you any fights!
Rihito: Ah, um, I don’t fight, but I do admire bodies like Franken-san's.
Ken: You’re a novice! You should train your big muscles first. If you’re serious about it, I’ll be your trainer!
Rihito: Really?
Ranmaru: (The mingling sweat of two virgins)
Ranmaru: (What a sweet-smelling space this is)
Ranmaru: (However)
Ranmaru: (Hmm. If I get too involved, it might affect Rihito-kun’s blood flavor. Too much stoic training can sometimes ruin the taste of blood, you see. I must watch over them carefully.)
Ken: Hnnn, hnnn, hnnn, hnnn, hnnn, hnnn!
Rihito: Hnnn, hnnn... Ah, no good.
Ranmaru: (Could this be... getting too mature?)
Ranmaru: (Sento guardsman! Get over here now!)

aww, they are even more adorable in this way (｡♥‿♥｡)

English transcript:
Ranmaru: Good morning, Rihito-kun. Are you going to school now?
Rihito: Mm, yeah. Mori-san, you don't have any plans to meet Aoi-chan today, do you?
Ranmaru: Eh? Why would I meet with someone like her?
Ranmaru: (Does Rihito-kun still misunderstand me as a love rival?)
Ranmaru: I told you yesterday, I just happened to run into Aoi-san yesterday.
Rihito: But, it seemed like you got really close! You were trying to kiss her, weren't you?!
Ranmaru: (Kiss... You said "kiss" didn't you, Rihito-kun? So cute, so innocent, "kiss"... I want to bite into you!)
Rihito: Since you're an adult, it's normal to do things like that, I guess, but...
Ranmaru: I haven't kissed anyone in a long time! Besides, the one who I like is...
Rihito: "Who I like is...?"
Ranmaru: No matter when... I'm single-minded about YOU, Rihito-kun!
Rihito: There you go again, deceiving me! Adults are dirty! I won't be fooled anymore!
Ranmaru: Ah! A-ah...
Ranmaru: (Sometimes, that land mammal known as “woman” can be useful. Precisely because they're the same sex, you can get intel on future plans and current status... Such tricks are dead, Rihito-kun!)
Rihito: Um...
Ranmaru: Yes? Something you forgot?
Rihito: I'm off!
Ranmaru: (Wa... wait a minute! Kyah...)