Board Thread:Questions and Answers/@comment-67.87.108.136-20151229012010/@comment-26076447-20160123232328

Ayato is the oldest triplet but fifth son and Laito is the youngest triplet but the third son. No in the anime it says 三つ子 (Mitsugo) which means triplets. It goes Ayato Kanato Laito just like it is listed on the site despite their birthdates though Laito is the third son Kanato is the fourth son and Ayato is the fifth. For the triplets themselves due to an old Japanese Tradition (which they use for the triplets in the game(s), it states the first born triplet (Laito in this case) would be the youngest and the last born would be the eldest (Ayato in this case) since they are all born on different days. By birth order though, Laito would be considered the third eldest (son) despite being the youngest of the triplets.