TL;DR: A very short and fun story with Fujieda Miyabi's trademark fluff and vibrance. You can't go wrong with reading this in one sitting! -- Story: Very quick and decisive pacing, perfect for the premise shown in the synopsis. Each chapter did its part to develop the characters' relationship and advance the story with very little filler. Don't get me wrong here - it's still fluffy, but it definitely does not waste time! Art: Simple backgrounds and pleasing character aesthetics are Fujieda's trademarks, reflecting his focus on the characters in his works. Very easy to look at! Characters: Nothing extraordinary or outstanding - there is a clear power differentialbetween Letty and Tsumugi, in this case mostly established through each character's backgrounds. The writing, however, is superb as always, with a very vibrant and exciting tone that does not fail in keeping the reader in a light mood.
Enjoyment: Short, sweet, fluffy. You can even read it in one sitting if you have the time! The story is just paced so well that you won't get burnt out, and it's short enough to not take more than an hour or two.
Ending remarks: A very fabulous, short tale full of excitement. Not the best manga, but certainly a very entertaining one!