The line comes from Mikan Tsumiki, the Ultimate Nurse of Danganronpa 2: Goodbye Despair, the 2012 Spike Chunsoft visual novel. Mikan's speech is famous for its constant apologizing and trailing off, and 'how should I put this' became her signature lead-in among fans. Clips of her stammering delivery circulate on soundboards and social edits, where creators use it to voice shy or guilt-ridden characters, much like other anime voice memes such as ara ara. It endures because the awkward honesty is instantly quotable.