Koyomi
SenseiIt's Koyomi's birthday, so I decided to celebrate as a child.Koyomi-chen-che-
Happy Birthday~!
Madoka might be mispronouncing "sensei".Koyomi-sensei~
Congratulations!Takanachi Koyomii!
Happy Bachiya-day!
Emma seems to be mispronouncing some of the syllables.Wow, Emma-chan!
You can speak English!I'm so happy!Just a minute.Happy B(irthday)! Happy B(irthday)!
In Japanese, the phrase seems to get contracted to include just the first syllable of Birthday in romaji.Thank you, Madoka-chan, Rituka-chan.Sousai Shoujo Teien Activity Diary Extra Edition