Filing Details

Check the appropriate box to designate the rule pursuant to which this Schedule is filed.

  o

Rule 13d-1(b)

  o

Rule 13d-1(c)

  x

Rule 13d-1(d)

 CUSIP No.  58510H103

1

NAME OF REPORTING PERSONS

Kouji Eguchi

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)

(a)  ¨

(b)  ¨

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

Japan

NUMBER OF

SHARES

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

5

SOLE VOTING POWER

1,884,960

6

SHARED VOTING POWER

0

7

SOLE DISPOSITIVE POWER

1,884,960

8

SHARED DISPOSITIVE POWER

0

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,884,960

10

CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

o

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

37.3% (1)

12

TYPE OF REPORTING PERSON (See Instructions)

IN

 CUSIP No.  58510H103

Item 1.

Item 2.

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

¨

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)

¨

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)

¨

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)

¨

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e)

¨

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f)

¨

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g)

¨

A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

(h)

¨

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

¨

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

¨

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

(k)

¨

Group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

 CUSIP No. 58510H103

Item 4.

Ownership.

(a)

Amount beneficially owned:

1,884,960

(b)

Percent of class:

37.3%

(c)

Number of shares as to which the person has:

(i)

Sole power to vote or to direct the vote:

1,884,960

(ii)

Shared power to vote or to direct the vote:

0

(iii)

Sole power to dispose or to direct the disposition of:

1,884,960

(iv)

Shared power to dispose or to direct the disposition of:

0

Item 5.

Ownership of 5 Percent or Less of a Class.

Item 6.

Ownership of More than 5 Percent on Behalf of Another Person.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Item 8.

Identification and Classification of Members of the Group.

Item 9.

Notice of Dissolution of Group.

Item 10.

Certification.

 CUSIP No. 58510H103

Dated:  January 15, 2021

Signature:

/s/ Kouji Eguchi

Name:

Kouji Eguchi