What's that one anime that you will shamelessly shill for no matter what?

For me, it's Heavenly Delusion. Now I know what you're thinking, "Heavenly Delusion? That's quite popular" and yeah but ever since it aired last year, whenever I see a recommendation thread on here and think "hey, that fits Heavenly to a T", it's nowhere near the top comments.

So yeah, what's your anime that you want to endlessly shill for?