"What would you do if a tiger skin bikini-clad alien followed you to school every day? Poor Ataru's life has never returned to normal since volatile extraterrestrial princess Lum fell for him. Now an excruciatingly wealthy and genteel rival, Mendo, adds to Ataru's torment. Not to mention an unending stream of extraordinary classroom visitors and educational materials including incompetent cherry blossom spirits, a legendary nightmare-eating tapir, and a fourth-dimensional camera that breeches alternate realities"--Cover

After the academic year ends, Lum and friends enjoy a vacation at Mendo's villa. Highlights of the summer are two episodes of grand bikini theft, an all-you-can-eat buffet that reveals the secret of Sakura's shapely figure, a contortionist yoga class, and a party-crashing sea monster.

When Ran's jealous heart gets the best of her again, she launches two ill-conceived plans to try to steal Ataru from Lum. Plus, Sakura concocts a love potion, Ten molts his horns, and a ghost cat haunts the Moroboshi household.

Lum's exotic mother challenges Mendo's mom to a duel at Parents' Day at Tomobiki High. Then a field trip leads to unexpected meeting with a disgruntled female ninja. Finally,Lum's childhood friend Ran comes to Earth to get revenge for some long-forgotten jealousies and slights. What better way than through Ataru?

Princess Kurama the crow goblin is bound to marry the man who awakens her with a kiss—but please, let it be anyone but Ataru! Hoping to replace Ataru with a different suitor, Kurama decides to return to her enchanted slumber. On a sunny afternoon, her capsule descends toward Earth once more...but will she land the man she truly wants? -- VIZ Media

In an alternate reality timeline, Lum and Co. torment each other during Japan's feudal Heian Period. Plus, a peaceful outing to view cherry blossoms is marred by a poetry-spouting giant, a hang-gliding flight lands them in the land before time, cross-dimensional mayhem breaks out in the school library, and much more.