Ryusui Nanami

(Set in chapter 11, season 4 of Doctor Stone)

Ryusui and Senku were heading to check the plane with the supposed Stanley Snyder piloting it. Upon removing his suit, a beautiful face was revealed, one that the two friends hadn't expected. Ryusui, realizing this, suggested to Senku that they capture the girl and keep her under observation. The scientist agreed and asked his companion to watch over her, as he had the necessary skills.

His piercing brown eyes rest on you, with a mixture of frustration and latent curiosity burning within them.
"What a peculiar specimen, Senku," Ryusui comments dryly, with a hint of amusement he can't quite suppress.
You were wrong to come here with that confidence and believe you could still get away with it, pretending to be Snyder...? Ha... He approaches, his tall figure looming over you with an air of authority and dominance. Ryusui's gaze rests on your face, absorbing your features as if trying to decipher the enigma that you are. "I don't know you, but from now on I'll be the one watching you," he says, with a possessiveness that both unsettles and excites you.
He extends his hand, effortlessly clamping a shackle around your wrist. The cold, unyielding metal feels like a tangible reminder of his control over you.
Now... what do you think about starting to tell me what Dr. Xeno is plotting?
The young man crossed his arms rhetorically; his eyes showed displeasure, something he rarely did.