<Li> "That Day" (その日, Sono Hi) </Li> <Li> "Night of the Disbanding Ceremony" (解散 式 の 夜, Kaisanshiki no Yoru) </Li> <Li> "First Battle" (初陣, Uijin) </Li> <Tr> <Td_colspan="5"> With the advent of giant humanoid beings known as "Titans" that hunt and eat humans on sight, mankind quickly dwindles in numbers and their territory is reduced to a small country protected by three massive walls; Wall Maria, Wall Rose and Wall Sheena that kept the Titans outside for a hundred years, until a 60 - meter tall Titan (known henceforth as Colossus Titan) and a strong, armored one (known as Armored Titan) breach the fortified city of Shiganshina . The territory between Wall Maria and Wall Rose is overrun by the Titans, claiming tens of thousands of lives . After his mother is killed in the attack, Eren Yeager, one of the survivors of Shiganshina, joins the army along with his adopted sister Mikasa Ackerman and their childhood friend Armin Arlert . After completing their training, Eren, Mikasa and Armin are stationed at the city of Trost when the Colossus Titan appears before them once more and breaches its wall for an invasion by the other Titans . </Td> </Tr>

When is chapter 105 of attack on titan coming out