The sixth season of Pororo, many episodes take place in the Summer Islands.

Nobita Nobi is an elementary student who hates studying, is bad at sports, and does everything half-heartedly. He is a pushover, unlucky, and fearful of many things. His personality makes him a failure in life, even affecting his progeny. This causes his great-great-grandchild, Sewashi, to take control of the situation. Sewashi travels back in time from the 22nd century to the 20th century to meet Nobita, who is shocked to see him appear out of his drawer alongside a blue robotic cat. The robotic cat calls himself Doraemon, who claims to have been pressured by Sewashi to assist Nobita, with their ultimate goal being to provide Nobita happiness. Frustrated after seeing Nobita’s hopeless state, Doraemon decides to go back to the future. However, Sewashi activates a program within Doraemon that prevents him from doing so. Forced to stay, Doraemon helps Nobita using futuristic gadgets through his four-dimensional pocket—a bag containing anything inside it. Can Doraemon bring Nobita happiness and return to the future? [Written by MAL Rewrite]

A Chinese prince meets a regular civilian during his travels and quickly falls in love. They marry and have a daughter, but the prince is soon separated from them during a rebellion. Many years later, the prince has become emperor and locates his lost daughter. She comes to live with him, but unfortunately has picked up several unrefined habits during her times as a civilian.

A story about kids fighting with Karaoke.

Five Enlightened cards scatters all around Japan after a secret ritual gets interrupted. Shobu Kirifuda got one of these cards from his father. Shori Kirifuda and 5 other duelist hunters are after him. Shobu must battle descendants of the Chosen Ones (Yaesar), named Luna & Mikado Kozuki, who can control God power.

Athlon Tobot is a sports-themed spin-off series of Tobot set in the same universe. Elementary school student and Robot Racing super-fan Kyle Hughes finally gets the chance to live out his dreams, and joins the League with Alpha, Beta and Theta— the three Athlons built by his mother, Dr. Hughes. Unfortunately he soon discovers that his former idol Mavrik Stone, famous Robot Racing Champion and media darling, is actually a super-villain responsible for the slew of rigged and sabotaged races that have been cropping up in the competition. Kyle is determined to protect the sport he loves and with the help of his family and his friend Tori Wade, he embarks on a mission to weed out corruption from the League and reveal Mavrik for the cheater he truly is. The best way for Team Athlon to do that? Make it as far as they can in the racing competition. (Source: Tobot Wiki)

New Tamagotchi! anime series.

AK Magical Girls is a story about three new transfer six grade student of the ShinHi Academy, whose true identity are in fact three music fairy came from the World of Music that fight the evil Lord of Noise to defend the peace of the world in secret. (Source: Magical Girl Wiki)

The second season of Dochamon Junior.

2100A.D. The world has entered a new age of super high-speed railways. The World Railway Conference has introduced the Laser Rail, a whole new form of travel in which trains are no longer confined to the ground. To operate on the Laser Rail, the Train Base is established. Here, trains from across the globe, installed with artificial intelligences and robot bodies. Thus the Train Heroes are born. Within the Train Base, these Train Heroes undergo strict training sessions. On occasion, they are called upon to assist in disaster rescue and relief. (Source: AniDB)

Shobu and friends fight the remaining Fua Duelists in order to defeat Zakira. Once again, they face off against the old members of Fua Duelists at the World Championship tournament. Shobu also found the terrible fate his friends faced because of these duelists in their past. (Source: Duel Masters Wikia)