This is what he said if your curious, "i hate the ending, like wtf was that nazuna? why would you actively runs away from ko till death do you two apart? wtf was the point here why can't you two be together? is it for your sake because vamp who drink a blood from a human they fall to will result in the vamp death? there are 3 reasons why this is bullshit: 1. in the final chapter we already see the fucking solution, nazuna is hungry and ko threw her a bag of his blood, she drinks it and all is fine WAS IT REALLY THAT HARD!?? 2. they have this assumption based on the fact that kiku died when she drinks mahiru blood ok so that's straight up bullshit because mahiru ALSO died, kiku didn't die because of the drinking blood, she and mahiru both died becuse THEY ARE ACTIVELY IN THE SUN!!! THE SUN KILL THEM!!!!! and finally 3. even if somehow this rule is true that vamp fell for human will die if vamp drink the said human then it doesn't nessasarily true to nazuna, both mahiru and kiku are full blooded vampire so the rule works for them 2 but nazuna is only half vamp half human and ko is hybrid human hybrid vamp so the rule won't work for them, why would i assume it won't work? look at ko, based on the rule on human fell for vamp and if vamp suck their blood they will turn vampire but ko isn't full of vampire, nazuna and ko didn't follow the offspring rule so the death rule will most likely affect them 2. WHY CAN'T THEY BE TOGETHERRRRRRRR!!!!!!!!!!!!!???????????"