Title: Dandadan
Japanese Title: ダンダダン
Edition: Kindle
Author(s): Tatsu, Yukinobu
After being rejected, Momo Ayase finds herself sulking when she stumbles across a boy being bullied. Saved by her rash kindness, the alien-obsessed boy attempts to speak to her about supernatural interests he believes they share. Rejecting his beliefs, Ayase proclaimed that she instead believes in ghosts, starting an argument between the two over which is real.
In a bet to determine who is correct, the two decide to separately visit locations associated with both the occult and the supernatural. When the two reach their respective places, it turns out that neither was wrong and that both aliens and ghosts do exist.
This marks the beginning of Ayase and Okarun's adventure, as they attempt to fix the surreal, supernatural, and occult elements around them to return to a normal life.