Something is Wrong

Mrs. Sri's speech was so long and serious about cyanide poison apple seeds that those who listened to it were seriously silent, studying Sensei's Biology description.

 "How many apple seeds approx... to make Cyanide?" Kim Jae asked a moment later.

 "The dose of cyanide that can cause a fatal condition is around 1-2mg/kg, or about having to eat about 200 apple seeds, or 20 apples in the middle. That's doubtful. In my opinion, it should be more than that." Mrs Sri added.

 "How many?"

 "500 apple seeds!"

 "I'll do it. Shika will give it to Daisuke-sama," said Kensuke.

 "No! Let me take care of it." Mrs Sri continued quickly. "This case must be neat."

 I even planned this well in advance.

 Mrs. Sri thought.

 ***

 There are some health effects from cyanide poisoning or too much cyanide intake, these signs can occur within seconds to minutes. Some of these signs are:

 Feeling weak, and confused

 Headache