Collapse, harem after the end of the world

After the collapse of the world and the human race completely left the planet, Adam thought that he would have to live the rest of his life in difficulty.
However, as time went by, Adam found that there seemed to be many strange people around him.
A green cabbage: Captain, please complete today's material collection mission
A certain cook: Team member Adam, I'm leaving today's mission to you as well.
A certain white-haired Lolita: Senior! Where are we going today?
A pink-haired fairy: Young man, where are we going to play today?
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Regarding the increasing number of young girls around him, Adam said: I am not interested in women. Women will only slow down my speed in picking up trash.