Hanagumori refers to light gray skies in cherry blossom season. This is the temperament of Patchouli, who began investigating the temperamental abnormalities for her own unique reasons. She has adjusted her temperament to be as balanced as possible. Patchouli compensates for her elemental weaknesses with other elements, so she resists all Five Phases. However, since she is unable to wield star magic, she is weak to Star Essence.

The ability of Patchouli Knowledge from the world of abundant temperament (a Touhou LW original). There are no noticeable differences between this ability and that of other Patchoulis. Noticing a shift in temperaments, Patchouli began her search for the culprit behind the emergence of the scarlet cloud (also referred to as the scarlet mist). According to her, magicians are highly attuned to changes in temperament, and as someone who studies spirit magic, she is especially sensitive. Elemental spirits govern temperament and are represented by the Five Phases (Wood, Fire, Earth, Metal, and Water), which Patchouli is skilled in manipulating. Disruptions to the natural order of temperament must have hindered her research, or, at the very least, proved a great annoyance. Otherwise, why would the ordinarily immobile "Great Library" decide to take action? In the end, Patchouli failed to determine that the true culprit was a certain celestial and instead put the blame on an oni. Despite her sound reasoning, she ultimately reached the wrong conclusion. It's not uncommon for youkai to get involved with or attempt to resolve incidents or disturbances. Even if it wasn't recorded in official documents for one reason or another, it's reasonable to assume that youkai have taken action from behind the scenes. After all, incidents were originally challenges set by youkai to preserve their existence, and as such, they are an assortment of schemes and machinations rife with unseen goings-on. Actions like Patchouli's during this incident, which were entirely voluntary and driven by her own self-interests, are comparatively easy to comprehend. The issue lies in the fact that incidents and disturbances in this world often remain unresolved, becoming prolonged. While Patchouli ultimately didn't identify the correct culprit, she came remarkably close. She's so proficient in manipulating temperament that she herself was actually a viable suspect for the incident's prolonging. But anyway, what would have happened if she had continued her investigation after defeating the falsely accused oni? She would have inevitably noticed that the incident had not been resolved, but what would she have done then...?