User blog comment:B214/Question & Answers 5/@comment-71.79.85.53-20160509235351/@comment-3435913-20160510082356

'Ise' is pronounced ihSEH. Basically the long vowels in his real name are shortened so people can say it quicker than having to stress the I and Ei sounds, especially since they all add -kun, -san, -sama, -senpai, etc.