Urusei Yatsura

Can any one tell me what Urusei Yatsura 366 talk about?

as the title said,how Urusei Yatsura 366 goes?
Does Ataru tell Lum he loves her or not?

Ran breaks the news to Mendo, Sakura, Inaba, Cherry and Shinobu that if Ataru doesn’t tell Lum he loves her, everyone’s memories of the aliens will be erased. As they discuss how this will affect things, they decide not to tell Ataru, out of fear that it will just make him more obstinate about telling Lum how he feels. Just then they realize that Ataru had been spying on them the whole time and now knows everything. Lum soon arrives and the two of them get into a fight. Ataru tells her to go ahead and erase his memories now and just get it over with, so Lum flies off to her father’s UFO. Benten and Oyuki chase after her and try to make her listen to reason. Benten becomes enraged and tells Lum how much she actually likes the human’s they met, which causes Lum to rethink things. Just then Benten accidently activates the Amnesia Device. Luckily it was set on a timer so it won’t go off until sunset on the tenth day of the tag-battle. As Ataru lays awake that night he thinks of Lum. The next day Mendo has everyone up in one of his helicopters looking for the Amnesia Device so that they can hopefully stop it before it goes off. They have no luck until Inaba points out that a giant robotic-oni has been flying along beside them for quite awhile. Ten recognizes it as the Amnesia Device and everyone tosses on a jetpack and tries to toss balls at the target painted on it’s chest. This will cause the device to shut down, but unfortunately no one seems able to hit it. That night Ataru has fallen asleep in his partially destroyed room when Ten sneaks in. Ten whispers to the sleeping Ataru about the Amnesia Device being activated and that he’ll be glad to be rid of Ataru. He then tells him goodbye. A single tear from Ten falls on Ataru’s face causing him to wake up. He overheard Ten that the device was online and that he tomorrow is do-or-die. The next day Ataru chases Lum through the destroyed streets of Tomobiki as the crowd sadly watches him stumble and fall from exhaustion. Ataru screams at Lum and tries to leap for her again, causing him to fall. One of Lum’s horns slips from his grasp and upon seeing this Lum realizes that Ataru has finally does what she told Rupa she longed for. Ataru has kept something of hers. She flies down and the two embrace as she guides his hand up to her horns. The Amnesia Device comes crashing down to Earth as Rupa unleashes his pigs to devour the mushrooms that have overtaken the planet. As Ataru and Lum walk into the sunset she tells him that one day she’ll get him to admit he loves her, to which Ataru replies “only on my deathbed”.

From: http://emanga1.isoshu.com/bookinfo/26436
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1st opening lums love song (urusei yatsura)