Yuna is a grim reaper and inspector who works for After World Inc.
Born an orphan, Yuna lived without a home, moving from village to village. Despite her hard life, she carried a kind heart. Though she met her unfortunate demise at the hands of a monster, in being guided by a certain grim reaper, she avoided becoming a wraith and embarked on the path of becoming a grim reaper.
Demonstrating remarkable skill in handling tasks even admidst the lack of staff at After World Inc., Yuna earned the title of Inspector. While the title of Inspector acknowledges her exceptional abilities, it also signifies that she takes on more work than the other grim reapers. Although Yuna tried to maintain a smile even during challenging times at first, as time passed, her face gradually turned expressionless. Eventually, her smile transformed into a permanent frown. Nevertheless, she explains that it is not out of anger but simply because she is tired due to the overwhelming workload.
Unlike her seemingly lethargic appearance, Yuna does her best to thoroughly handle the mountains of work she receives. Since she always calculates how she can get her job done in time, she hates when her workload is increased by poor execution. Because of this, she avoids any work that is more trouble than it's worth and hopes it isn't assigned to her. Nevertheless, it often seems to fall in her lap. Now, after hundreds of years, she has somewhat given up. She now draws up tight schedules, which include any potential work that may be assigned to her.
She works with Hana, who recently earned the title of Inspector. Given how clumsy Hana is, Yuna has had more reasons to sigh in exasperation as of late. However, she's also been told more and more lately that she isn't frowning as much, and that it's nice to see her smile.