Today is the Harvest Moon, but let's look on the brightside! Once midnight passess tonight... Your treatment will go well, and you'll recover and be healthy again in no time... After all, the Mochizuki family cannot die on any other day.
—Noboru Mochizuki to Haruko Mochizuki, Thus Spoke Kishibe Rohan - Episode 4: The Harvest Moon

The Mochizuki Family (望月家, Mochizuki Ke) is a family both introduced in and acted as the main group of focus within the one-shot, Thus Spoke Kishibe Rohan - Episode 4: The Harvest Moon, as the current family must deal with a mysterious curse that has been affecting their family lineage for decades.

Summary

 
Current family

The Mochizuki family currently consists of five family members and their pet dog.[1] The complete family genealogy goes back sixteen generations, with the family being around as far back as during the time of the Battle of Sekigahara.[2] The current family resides in Morioh, as Rohan Kishibe states they live in his neighborhood.[1] Their real family name is unknown since Rohan used "Mochizuki" as a pseudonym before telling the story about them.[1] Every direct descendant of the family shares the exact date of death[3] of September 8th, the date of the Harvest Moon[4], which ties to a curse that has been dealt with for every generation.

Family Curse

Time is ever flowing... Generations will come and go... And those in that family... They'll get careless and forget the reason why they have to watch the Harvest Moon... That's when I'll return...

Every year during the Harvest Moon, they must view the moon altogether until midnight.[5] If they follow this rule, they will live long lives, as shown by Seizo Mochizuki and his wife Sae, both living to 100+ in good health.[6] However, if a family member doesn't follow the rule, they will be killed by unfortunate events. These unfortunate events can be seen with Noboru's brother Mamoru who died by drowning at 17 while trying to help a neighbor's kid from drowning, and his father Sakuzo, who died of an allergic reaction to a giant hornet sting at 46.[3] Unbeknownst to them, the family is stalked by a spirit known as the Moon Rabbit, who is the one that brings misfortune to anyone in the family who doesn't follow the rule. The origin and reason why this curse has befallen this family for past, present, and future generations to come are unknown.

One way to avoid this misfortune is if a family member accepts someone's hand in marriage. This condition is met when Aki is narrowly spared of misfortune by hornets by accepting her boyfriend's proposal, thus causing the spirit to proclaim she is no longer part of the family in mind or body.[7] Instead, the misfortune was redirected to a motorcyclist driving by that caused them to crash and be killed to even the balance.[8]

Members

Mochizuki Family
(Marriage)
(Engagement)

Family Tree

The number of relatives some members may have is unknown because the family tree is only partially shown within the one-shot. Some names are also obscured, as seen with Kentaro, where the first kanji in his name is partially shown. Another example is the partial names for two siblings of "-zo" ((ぞう)) and "-mon" ((もん)).

 
 
 
 
 
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"-mon" Mochizuki
 
"-zo" Mochizuki
 
???
 
???
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tsukiji Mochizuki
 
???
 
???
 
Kentaro Mochizuki
 
Kayo Mochizuki
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
???Yoshigoro Mochizuki 
Seizo Mochizuki
 
 
Sae Mochizuki
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
???Miwa Mochizuki
 
Yamato Mochizuki
 
 
Sakuzo Mochizuki
 
 
Mitsu Mochizuki
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Haruko Mochizuki
 
 
Noboru Mochizuki
 
Mamoru Mochizuki
Akiko Mochizuki
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Aki's Fiancé
 
 
Aki Mochizuki
 
 
Takeru Mochizuki
 
 
Mochizuki Family Dog
 
  • Dashed lines indicate adopted children, couples who have divorced, extramarital affairs/unmarried couples, or illegitimate children.
  • Blue boxes indicate direct descendants of the Mochizuki lineage.
  • Red boxes indicate family members through marriage.
  • Gray boxes indicate pets that are part of the family.

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References

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