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Mantis Shrimp's Calculation (シャコの計算 Shako no Keisan?) is the one hundred and ninth chapter of the Dandadan manga series.

Summary[]

Mr. Mantis Shrimp struggles against the mantis suit alien, who acknowledges him as being a tough opponent that helps him to enjoy the suit's full functionality. Mr. Mantis Shrimp flashbacks to him tucking Chiquitita into bed as he is about to head out to meet up with Momo and the others for the upcoming battle. He then runs into the woman he works for who worries for his well-being after he started to come back home with bruises and eases her mind by telling her that he will come back to continue raising his son. Mr. Mantis Shrimp wishes to go back home and runs into the river, causing the mantis suit alien to interpret his action as an act of cowardness. However, Mr. Mantis Shrimp clarifies that he will fight him on his own turf and will continue to repay his debt to the people who helped him. The mantis suit alien then has his suit switch to its water form and states that he is 100 times stronger when fighting in the water, which proves to be true as Mr. Mantis Shrimp becomes too overwhelmed by his attacks to fight back and is pierced with a needle that injects him with venom. Mr. Mantis Shrimp tells the mantis suit alien that he is hard to fight against due to his large size but can now hit him as long he is close. Mr. Mantis Shrimp damages the mantis shrimp alien and states, as he transforms, that he is now twenty-four times stronger with punching power that is increased to being ten times greater under water, making him 240 times stronger in total. The mantis suit alien refuses to believe him but ends up being struck by Mr. Mantis Shrimp's Jet Punch that destroys his suit, causing the latter to comment that it was an incredible clean hit. He then swims to the surface to catch his breath, returns to his normal form due to only being able to last for twenty-four seconds, and releases the venom from his body, stating that he is immune to it due to his race being fighters despite him being categorize as weak. As he walks off, the mantis suit alien explodes from the water.

Characters in Order of Appearance[]

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Manga
Chapters and Volumes
Volume 1 12345
Volume 2 67891011121314
Volume 3 151617181920212223
Volume 4 242526272829303132
Volume 5 3334353637383940One-Shot
Volume 6 414243444546474849
Volume 7 505152535455565758
Volume 8 596061626364656667
Volume 9 686970717273747576
Volume 10 777879808182838485
Volume 11 8687888990919293
Volume 12 949596979899100101102
Volume 13 103104105106107108109110111
Volume 14 112113114115116117118119120
Volume 15 121122123124125126127128129
Volume 16 130131132133134135136137138
Volume 17 139140141142143144145146147
Volume 18 148149150151152153154155156
Chapters not yet in
tankōbon format
157158159160161162163164165166167168169170171172173174175176177178179180181182183
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Chapters and Story Arcs
Kintama Hunt Saga
Turbo Granny Arc 12345678
Acrobatic Silky Arc 91011121314151617
Serpo Arc 18192021222324252627
Cursed House Arc 2829303132333435363738394041424344454647484950
Evil Eye Arc 515253545556575859606162
Kaiju Arc 6364656667686970717273
Space Globalists Arc 7475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120
Onbusuman Arc 121122123124125126127128
Danmanra Arc 129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165
Current Saga
Kozuka Knives Arc 166167168169170171172173174175176177178179180181182183
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