Ena Ayase, is a fictional character from the ongoing manga series Yotsuba&!, as well as the one-shot manga Try! Try! Try!, both by Kiyohiko Azuma. The youngest Ayase sister, Ena is a few years older than Yotsuba and her most frequent playmate. Ena Ayase is being introduced in her removable outfit swimsuit version. She is 5 1/2 tall and comes equipped with a towel, a teddy bear and custom base for display.