User blog comment:B214/Question & Answers 5/@comment-72.220.143.12-20151012043030/@comment-3965848-20151013144213

@anon72.220 Asia had a yandere personality only one time at the end of Vol. 7 when she smiled with a murderous glare upon seeing Akeno kiss Issei.

The girls I mention are as close to a yandere we get, and luckily they're the type who willing share the guy and don't go as far as the level to kill him any other girl, like the bat shit crazy ones from Future Dairy and School Days.