• (To Haru, Makoto, and Asahi) "I won't lose to anyone." ( "僕、誰にも負けない。" "Boku, dare ni mo makenai.")
  • (To Asahi) "Stupid Asahi." ("バカ旭。" "Baka Asahi.")
  • (To Hiyori) "I'm not a child anymore." ("もう、子供じゃない。" "Mou, kodomo ja nai.")
  • "I'm never going to be an ordinary person."[1]
  • (To Haru)"I'm fine swimming alone."
  • "I'm no one but me. I don't need to compare myself to anyone."[2]
  • "Haru hasn't changed at all since then. I'm the one who's changed."[3]
  • "Before I knew it, I'd built a cage around my heart. But... I think I finally understand why I kept clinging to swimming. All along, I was afraid of ending up alone again."[3]
  • "I thought everyone would end up leaving me. So I tried to get stronger. Strong enough not to break even if I'm alone. Strong enough to be able to fight on my own. That's why I so desperately kept swimming."[3]
  • "It's not about getting stronger so I can carry on alone. If I'm not gaining that strength for someone else, there's no point. That's what true strength is."[3]
  • "That night, I wished that I'd become like Haru. That I could become a hero like Haru. ... the kind that everyone looks up to. The kind that helps out whenever someone is lost or stuck."[3]
  • (To Asahi, before racing him in the relay) "I'm fine. I practiced telling myself in the mirror, "I'm a genius. I'm a genius." Familiar?"[3]
  • (To Asahi) "In the water I'm alone, no one's gonna save me. That won't change."
  • "I had it backwards, you don't get strong so you can live life alone. It turns out true strength is the kind you gain for the sake of the people you care about, and the more you build it, the more you understand what it means to be free!"
  • (To Asahi) "Yeah right you wish, that's not even possible. Stupid Asahi."
  • (To Natsuya) "Well, how could I not succeed, when I have a brother like you to look up to?"