How do these two songs being so associated with Reira Hayato?

Warning: Anime / Manga references!

(I remembered that I once said this before)

Undyne => Spears (she uses spears as the weapon of choice) => Kyoko Sakura from Puella Magi (Kyoko also uses a spear) => Christianity (Kyoko is from a church family) => Crosses (crosses are like an emblem of Christianity, undoubtedly) => Yumemi Okazaki (Yumemi uses crosses in her attacks) => Reira Hayato (Reira is mainly based on Yumemi Okazaki and Undyne)

Also Undyne => Battle Against a True Hero (Undyne's Genocide theme) => Strawberry Crisis!! (Yumemi's theme; the middle part of Battle Against a True Hero is somewhat similar to Strawberry Crisis!! in melody) => Yumemi Okazaki (Strawberry Crisis!! is Yumemi's theme) => Reira Hayato (I said the reason for this above)

So what do you think of this? Do these process gather enough evidences why I based Reira Hayato's character concept on Undyne and Yumemi? Please leave me a comment below!