Addition and Subtraction of Swimming Skill

This is Special Item #23 from the series "Knowledge Is No Burden." The originality of this item can be determined by its thoroughly white and tooth-like appearance. Besides, there is an anti-counterfeit code number "23" printed inside the groove of the tooth. Rumor has it that The M*nition Factory has mastered the technology of making counterfeit copies of this Special Item, thus users are advised to check their Special Item thoroughly before using it.

Preparation Steps: First, use pliers, a wrench, or a wire to extract one of your teeth. After rinsing the blood off, place Specimen #23 at the site of the extraction. Once this Special Item touches the gum, it plants itself firmly in the socket. Since this Special Item looks exactly like a real tooth and can work as one, and is practically indestructible, it is said that some posthumans actively seek it to use as a denture.

Next, please use this tooth to collect water current.

Way to collect: After diving into the water, get closer and take a bite of the water around your target. Please take note that the water must pass through Specimen #23, though it will be hard for the water inside your mouth cavity to miss a tooth. After that, the "swimming skill" of your target will be converted into a numerical value known as swimming value, and be stored in Specimen #23. For example, the swimming value you will get from the legendary Zhang Shun is +10, while the swimming value of a bad swimmer is -10. It is rumored that after biting the water around a submarine, you will get +65 swimming skill. Be that as it may, the likelihood of coming across a submarine is near impossible, whether it is during the modern days or in the post-apocalyptic worlds, so this statement has yet to be confirmed.

For instance, the first swimming value stored in Specimen #23 is +10, and the second swimming value is -10. To gain the +10 swimming value from Zhang Shun, crunch Specimen #23 with your teeth once then spit the stored water onto yourself. Similarly, crunch Specimen #23 twice and spit the stored water to give the -10 swimming value to your opponent.

You can also change the sequence on the day you decide to end your life. All you need to do is memorize the order of the value stored, and you can achieve several feats such as weakening your opponent, making yourself stronger, or committing suicide.

Chapter appearance: CH651, used by Maxin on Zeus.