Here is the second part of Hotaru which covers Episodes 148 to 151. This filler arc reminds me of the Infinity Arc from Sailor Moon due to a few things: an girl who is being used as an MacGuffin, an relationship with the cursed girl with an friend, and the whole unsealing the Forbidden Jutsu which will destroy nations around villages is somewhat similar to how Sailor Saturn would destroy the world if she fully awakens.